SPL Rear Knuckle Bushings for 15+WRX/STi BRZ FRS 86 (RKB FRS) Akrapovic The STM kit places the

The STM kit places the can neatly out of the way on the lower radiator support

DSS was going to try to make a single shaft but due to Critical speed limitations it would need to be a 4" diameter and would not fit under the car and also the operating angles would not allow for a 1-piece shaft to work

and are OE suppliers to many US

BRZ w/ Brembo P9R906 Rear 2004-2017 STi (Not 2018+)

SPL Rear Knuckle Bushings for 15+WRX/STi BRZ FRS 86 (RKB FRS) Akrapovic The STM kit places theSPL rear lower control arm knuckle bushings allow for less deflection and bind leading to improved driver feedback from the tire and better overall response. Vehicle Fitment: 2013 2016 Scion FR S 2013 2024 Subaru BRZ (ZN6 ZD8) 2017 2020 Toyota 86 (ZN6) 2022 2024 Toyota GR86 2015 2021 Subaru WRX (VA) 2022+ Subaru WRX (VB) 2015 2021 Subaru STi Purchase Includes: (2) Bushings Replaces these OEM Part Numbers: 20254 CA000 (Subaru) SU003 00366 (Toyota)